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Project would also slightly expand the boathouse and add solar panels and stormwater retention features to both buildings.

PHOTO COURTESY OF CITY OF LAKE OSWEGO - Concept designs submitted to the City highlight the new rooftop solar panel arrays and stormwater treatment basins that the Lake Oswego Corporation plans to add to its boathouse and marina.The Lake Oswego Corporation received tentative approval this week to expand its two buildings on McVey Avenue, adding a second story to the marina office building and expanding the existing second story of its boathouse building by enclosing an outdoor deck.

The expansions will not increase the footprint of either building, but they will add office space. Lake Corp manager Jeff Ward says the corporation has begun to do more of its work in-house in recent years instead of relying on contractors, and has outgrown its current space as a result.

"It's nothing too earth-shaking," he says. "We're just trying to make the office space a little more usable."

According to documents submitted to the City, the proposed project would give both buildings a combined 3,191 square feet of office space. The plan also calls for the addition of an elevated walkway between the second floors of the two buildings. Ward says the work is expected to cost between $500,000 and $700,000.

The remodel and expansion will also add solar panels and stormwater treatment facilities for the buildings. Concept artwork in the Lake Corp's application shows both buildings sporting roofs with an array of solar panels across one side.

Ward says the panels are part of an effort to decrease the buildings' energy footprint and increase their resilience in the event of an earthquake or other disaster. In particular, he says, it's important that the buildings always have a power source to operate the adjacent dam and release water from the lake.

"In any kind of a flood situation, you need to be able to release water," he says. "The fact that we put in a bigger spillway (in 2011) reduced the floodplain around the lake by 3.8 feet, so we want to make sure that's operable so you don't end up like (the flood) in 1996, with water going over State Street and McVey."

The stormwater treatment planter boxes will be mounted on the sides of the buildings to collect runoff from the roofs. Since the buildings' footprints aren't expanding, Lake Oswego's city code does not require the project to add stormwater mitigation, but Ward says the corporation wanted to set an example.

"We want to do the right thing, and show everyone that doing the right thing can be done well and look good," he says.

Ward says construction is likely to begin in October, at a point when the Lake Corp is already planning to lower the lake by 10 feet to give lakeside property owners a chance to conduct regular repairs.

"That's the perfect time to do this work, because we can clear out the marina since you won't be able to get here by boat," he says. "We want to hit the ground running, and we may even start on the boathouse building earlier than that if we can get stuff cleared out of there."

A portion of the boathouse building sits on wooden pilings in the water, so the drawdown will give the corporation a chance to see if any improvements are needed. The expanded second story won't substantially increase the boathouse's weight, but Ward says the corporation will still look for ways to make the building stronger.

"We'll probably beef up the footings," he says. "We'll look at that when the lake's down and do that as necessary, as the engineer requires."

The corporation hopes to have the work wrapped up and move back in to the buildings by April or May of 2018, in time for the increased boating traffic that occurs in the summer season.

Contact Lake Oswego Review reporter Anthony Macuk at 503-636-1281 ext. 108 or This email address is being protected from spambots. You need JavaScript enabled to view it..